884
FNCA52 TJSJ 260730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST SAT SEP 26 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-262000-
SOUTHEAST COASTAL PLAINS-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 20
TEMP (24H TREND) 91 (+2) 75 (-1) 90
RH % (24H TREND) 52 (-3) 89 (0) 52
WIND 20FT/EARLY(MPH) E 12 E 8 E 12
WIND 20FT/LATE(MPH) SE 12 NE 8 SE 13
MIXING HGT(FT-AGL/MSL)4720 5460
TRANSPORT WND (MPH) SE 12 E 13
VENT RATE (KT-FT) 47200 60060
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-262000-
SOUTHERN HILLS-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 40
TEMP (24H TREND) 89 (+3) 71 (-3) 88
RH % (24H TREND) 59 (-7) 96 (+3) 63
WIND 20FT/EARLY(MPH) SE 10 E 6 E 10
WIND 20FT/LATE(MPH) SE 10 E 9 SE 10
MIXING HGT(FT-AGL/MSL)5360 5890
TRANSPORT WND (MPH) SE 9 E 12
VENT RATE (KT-FT) 42880 58900
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-262000-
NORTH COASTAL PLAINS-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 40 50
TEMP (24H TREND) 92 (+1) 74 (-3) 91
RH % (24H TREND) 58 (-5) 97 (+3) 63
WIND 20FT/EARLY(MPH) SE 11 SE 9 E 11
WIND 20FT/LATE(MPH) E 12 SE 8 E 16
MIXING HGT(FT-AGL/MSL)5270 5510
TRANSPORT WND (MPH) SE 7 E 10
VENT RATE (KT-FT) 31620 49590
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-262000-
NORTHERN HILLS-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 70 80
TEMP (24H TREND) 91 (+2) 71 (-3) 89
RH % (24H TREND) 60 (-3) 97 (+2) 65
WIND 20FT/EARLY(MPH) SE 8 SE 5 E 8
WIND 20FT/LATE(MPH) NE 9 SE 5 E 13
MIXING HGT(FT-AGL/MSL)5430 5460
TRANSPORT WND (MPH) SE 5 E 7
VENT RATE (KT-FT) 21720 32760
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-262000-
WEST COAST-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 50 50
TEMP (24H TREND) 92 (0) 74 (-1) 91
RH % (24H TREND) 59 (-4) 95 (+2) 63
WIND 20FT/EARLY(MPH) SE 11 E 8 E 11
WIND 20FT/LATE(MPH) E 11 E 8 E 11
MIXING HGT(FT-AGL/MSL)5010 4960
TRANSPORT WND (MPH) SE 9 SE 8
VENT RATE (KT-FT) 40080 34720
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-262000-
EASTERN INTERIOR-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 40
TEMP (24H TREND) 91 (+3) 73 (-2) 89
RH % (24H TREND) 57 (-5) 96 (+1) 62
WIND 20FT/EARLY(MPH) SE 11 SE 8 E 10
WIND 20FT/LATE(MPH) SE 11 SE 9 E 12
MIXING HGT(FT-AGL/MSL)5970 6770
TRANSPORT WND (MPH) SE 9 SE 10
VENT RATE (KT-FT) 47760 60930
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-262000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 40
TEMP (24H TREND) 86 (+3) 71 (-2) 85
RH % (24H TREND) 61 (-7) 98 (0) 67
WIND 20FT/EARLY(MPH) SE 10 E 6 E 10
WIND 20FT/LATE(MPH) SE 10 E 6 E 10
MIXING HGT(FT-AGL/MSL)4650 5100
TRANSPORT WND (MPH) SE 12 SE 12
VENT RATE (KT-FT) 46500 51000
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-262000-
CENTRAL MOUNTAIN RANGE-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 70 70
TEMP (24H TREND) 87 (+4) 69 (-2) 86
RH % (24H TREND) 62 (-7) 97 (+2) 66
WIND 20FT/EARLY(MPH) SE 6 SE 6 E 8
WIND 20FT/LATE(MPH) SE 6 SE 5 SE 8
MIXING HGT(FT-AGL/MSL)5810 6380
TRANSPORT WND (MPH) SE 7 SE 8
VENT RATE (KT-FT) 34860 44660
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-262000-
CAYEY MOUNTAIN RANGE-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 40
TEMP (24H TREND) 86 (+2) 71 (-2) 85
RH % (24H TREND) 62 (-6) 98 (0) 67
WIND 20FT/EARLY(MPH) SE 9 E 5 E 9
WIND 20FT/LATE(MPH) SE 9 E 6 E 9
MIXING HGT(FT-AGL/MSL)5050 5870
TRANSPORT WND (MPH) SE 10 E 12
VENT RATE (KT-FT) 45450 58700
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-262000-
VIEQUES-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 50
TEMP (24H TREND) 90 (0) 80 (+2) 90
RH % (24H TREND) 57 (-3) 85 (-5) 60
WIND 20FT/EARLY(MPH) SE 10 E 11 E 12
WIND 20FT/LATE(MPH) SE 10 E 11 E 11
MIXING HGT(FT-AGL/MSL)3420 3550
TRANSPORT WND (MPH) E 12 E 13
VENT RATE (KT-FT) 34200 39050
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-262000-
CULEBRA-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 50
TEMP (24H TREND) 91 (+1) 80 (+1) 91
RH % (24H TREND) 59 (-4) 88 (-3) 61
WIND 20FT/EARLY(MPH) SE 10 E 11 E 12
WIND 20FT/LATE(MPH) SE 11 E 11 E 11
MIXING HGT(FT-AGL/MSL)3430 3610
TRANSPORT WND (MPH) E 12 E 15
VENT RATE (KT-FT) 34300 46930
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-262000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 20
TEMP (24H TREND) 93 (+2) 76 (-1) 92
RH % (24H TREND) 52 (-2) 88 (+2) 53
WIND 20FT/EARLY(MPH) E 14 E 11 E 14
WIND 20FT/LATE(MPH) SE 14 E 12 SE 16
MIXING HGT(FT-AGL/MSL)4970 5420
TRANSPORT WND (MPH) SE 14 SE 14
VENT RATE (KT-FT) 59640 65040
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-262000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 40
TEMP (24H TREND) 90 (+1) 78 (-2) 90
RH % (24H TREND) 60 (-4) 88 (+3) 62
WIND 20FT/EARLY(MPH) SE 11 E 11 E 12
WIND 20FT/LATE(MPH) SE 12 E 11 E 12
MIXING HGT(FT-AGL/MSL)3390 3610
TRANSPORT WND (MPH) SE 12 E 16
VENT RATE (KT-FT) 33900 50540
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-262000-
ST CROIX-
330 AM AST SAT SEP 26 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 20
TEMP (24H TREND) 91 (+1) 79 (+1) 90
RH % (24H TREND) 61 (-2) 89 (-3) 63
WIND 20FT/EARLY(MPH) E 10 E 11 E 12
WIND 20FT/LATE(MPH) E 12 E 11 E 12
MIXING HGT(FT-AGL/MSL)4920 4780
TRANSPORT WND (MPH) E 12 E 15
VENT RATE (KT-FT) 49200 62140
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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